Identifying outbound IP addresses of a Azure Function
Here is Microsoft’s documentation page on the topic. The only reason I am documenting this is because the Azure Resource Explorer failed to load consistently across devices for me. Some tutorials I found, like this one, seem to be outdated and the outbound IP addresses weren’t listed in any Properties menu in the Function App in the Azure Portal. The Azure CLI method was what worked for me: az functionapp show --resource-group <GROUP_NAME> --name <APP_NAME> --query outboundIpAddresses --output tsv az functionapp show --resource-group <GROUP_NAME> --name <APP_NAME> --query possibleOutboundIpAddresses --output tsv I wanted this as I was hoping to whitelist the IP addresses in the database firewall to allow for scheduling some SQL scripts to run daily. The issue with this is the following, copied from the above linked Microsoft documentation: “because of autoscaling behaviors, the outbound IP can change at any time when running on a Consumption plan or in a Premium plan.” While at least a few people say whitelist these IPs anyway, the recommended course of action is to set up a virtual network within Azure. ...